faeiitz



@einen tetes, @anni ffirr.

IMPROVEMENT INV LIQUID-METERS.

tite tlgsnde refresh in in tigen trttert hated mit making 9nd nf tte simu.

TO ALL WHOM'IT MAY CONCERN:

Be it known that I, R. H. ATWLL, of Baltimore', in the county of Baltimore, andv State of Maryland, have invented a new and useful Improvement in Water-Meters; and I do hereby declare the following to be a full,

' clear, and exact description of the same, reference being had to the accompanying drawings, which are made a part of this speciication.

My inventionconsists in a novel and eleotive arrangement for correctly registering the flow of water through a pipe by means of a series of compound water-wheels on a shaft, which gives motion, to theregister, the How of water being regulated by a sliding gate or valve, which allows more or less water to pass through without acting on the wheels, to keep the register correct under different degrees of pressure. -In the drawings- Figure 1 is a transverse vertical section of my invention.

Figure 2 is a horizontal section on the line w :8, iig. 1.

Figure 3 is a horizontal section on the line y y, fig. 1.

Figure 4 is a detached sectional view'oi` the upperpart of the wheel-cylindcr.

A'reprcsentsthe outer cylinder or case,which is connected to an ordinary water pipe by the couplings A A?, and to the interior of which access is had through the cap A3. Supported on the perforated rims a ai, within this case, is o. smaller cylinder, B, in the cross-bar and arm or projection 61 of which the` shaft C, carrying the water-wheels D D D, is journalled, and in. the slot Z22 ofwhich the regulating valve slides, and Whose upper end is provided with a frame, E, which forms thc bearings for the shaft F, and which, converging to a point, is there supported by a brace, G. The shaft C is provided at its upper end with a helix, I-I, which` rotates the cog-wheel-I on the shaft F, and through it and the tappet J, on the outer end of' said shaft, the registering machinery. The blades of each succeeding wheel D D D, from the receiving to the discharging end of the cylinder B, are, set at a greater angle to the shaft than those of the preceding wheel, so that the dedected stream of water will act on them with greater force. K .represents a gate or valve of elliptical form, having a circular' opening in it corresponding with the interior of the cylinder B, slots 7c, through which the pins or bolts 7:1 pass, securing-it to the rim or partition c, which forms its scat, and an enlargement, k2, through which the shouldered boltL, by which it is operated, passes, its shoulder being secured by a cap, a2, 'on the outside of the eylindcr'A, through which it passes. l

The operation is'as follows: The valve K being closed, as shown in figs. and 2, the water owing into the meter, as indicated byarrows, is forced to pass through the wheels D, rotating the shaft C, and through it the registering mechanism, the helix H being so constructed that for every revolutiono'- the shaft the wheel I will bc turned one cog. Il', however, it is found that the device is not registering correctly, L the valve K may be opened more or less, as shown in g. 3, until the flow of water is accurately registered` the valve allowing more or less water to pass through the cylinder Awithout going Athrough the wheels.

The device is so constructed that with ordinary pressure of water, if the gate K be closed and the whole body of water passed through the meter B, the action of the water on the wheels D will move the registering apparatus to an extent corresponding with the quantity of liquid passing through. In the event of excessive pressure, causing a greaterfacceleration in thc motion of the wheels than in the dow of water, and thus tending to indicate a greater flow' than actually occurs, the valve K may be slightly opened to permit so much of the liquid to passelear of the meter as may be necessary to restore the necessary correspondence between the dow andthe register, which may be tested by measurement whenever the apparatus is to be adjusted to any new place or pressure. l

I have described my device exclusively as a water-meter, but it is evident that it may be used for measuringany kind of liquids, and by means of the valve may be made to register more accurately than any other device known -to me.l The meter may be made of any desired site, bu't by a slightI change in construction a Vmeter of the size represented in thc drawings may be made to register the flow of a two-iuch or larger pipe.

Having thus described my invention, the following is what I claim as new therein, and desire to secure by Letters Patent by turning the screw ve K,'constructe d and operating in combination with the wheels D, substantially as described 1. The val for the purpose set forth.

2. The helix H, in com and for the purpose specified.

3. The arrangement ofthe rims or partitions a al,

bination with the shaft C, Water-wheels D, and registering device, substantially as water-wheels D, and valve K, substantially as described.

To the above specication of my improvement in constructing Huid or liquid-meters, I have signedrmy hand this 19th day of June, 1867. l

RICHD. H. ATWELL.

Witnesses:

E. F. M. FAnnTz, A. M. FAEHTZ. Y/m 

